24/02/2026
The MTX RTU8P active subwoofer (20cm 150W RMS 600W Peak) has no equal when it comes to improving an installation. It is ultra compact, extra thin (less than 8cm thick), super easy to fit (under a seat for example ...) and very easy to install. It is a small marvel of sound quality capable of reproducing a level of bass more than enough to listen to music with infinite pleasure. We've taken the time to make an amazing product with a fine balance between bass quality, power, price and design.
It is constructed from thick aluminum. It's ultra rigid, it doesn't vibrate and it's very resistant. It is not afraid of kicks when installed under a seat.
The 20cm subwoofer is a dedicated thin version. It was designed to do the maximum bass in this small cabinet of only 6 liters.
The amplifier develops the tidy power of 150W RMS. It uses a class-AB topology to ensure perfect radio reception when installed in the passenger compartment, near the car radio. We did it very powerful compared to the competition because we want our customers to have a good time with MTX, and of course, because we coined the word "BASS". To do serious you need power ...
The control panel is very complete with high-level inputs (automatic ignition, no "remete" cable needed), RCA inputs (Low level), gain control (0.1V to 4V), bass equalizer (0 to + 12dB), the active 18db / Oct low-pass filter variable from 50Hz to 150Hz, the phase switch (0 ° or 180 °) and the EBC remote control port. Nothing is missing, you can adjust the bass as you want and when you want ...
But as usual, the most important thing is the result: the sound quality. When you turn on the RTU8P, the first thing you say will be "waooow ... so much bass in such a small cabinet?!?". And you will still increase the volume ... :)
Features
• The simplest and most efficient solution to add bass to an installation
• Reduced size and thickness for easy installation under a seat
• Powerful Class-AB amplifier for realistic bass rendering
• Invisible mounting possible
• Remote EBC remote control at the front
• Low and high level inputs
• Phase adjustment 0 or 180 °
• Works perfectly with an original car stereo, or more